THAXTKU. — ARGENTINE LABOULBENIALES. 165 



Cantharomyces permasculus nov. sp. 



Perithociiim becoming dark amber-brown with a smoky tinge, 

 subsymmetricul, or usually straigliter externally with the inner margin 

 somewhat convex, broadening distaiiy; the short pale rather abruptly 

 subconical tip usually bent outward, the pore subterminal and ex- 

 ternal, an inner lip-cell forming the small papillate rounded apex: 

 the basal cell region not distinguished, the basal cells extending up 

 about the ascogenic region; the stalk-cell consisting of an upper sub- 

 triangular portion, distinguished more or less abruptly by a variably 

 developed constriction from its narrower basal portion, which may 

 equal the distal part in length, and is somewhat obliquely inserted on 

 the receptacle. Receptacle more or less deeply tinged with dirty 

 amber-brown, the basal cell nearly straight and variably elongated, as 

 is the more deeply colored subbasal cell, the base of which is modified 

 by an annular prominence of darker color. Appendage becoming 

 somewhat divergent and curved away from the perithecium, the axis 

 of which coincides in general with that of the receptacle, consisting of 

 five or six superposed cells, the basal one sterile and modified distaiiy 

 by an annular darker ridge similar to that at the base of the subbasal 

 cell of the receptacle, the two to four cells immediately above it 

 becoming compound antheridia, the uppermost or the two uppermost 

 of which may bear a usually simple branch distaiiy, or a pair of such 

 branches arising from opposite sides; the several terminal cells of the 

 appendage bearing distaiiy usually tw^o simple opposite branches 

 which greatly- exceed the tip of the perithecium. Perithecia 135-160 

 X 40-50 fi, the stalk-cell 45-60 m- Spores 70-75X4 fx. Receptacle 

 100-155X40 fjL. Main appendage 200-275 /jl, its longer branches 

 250 fjL. Total length to tip of perithecium 275-375 fx. 



On a large species of Parnus, commonly on the elytra. Palermo, 

 No. 1686. 



This species is readily distinguished from the following by the form 

 and color of the perithecium and its short stalk-cell, by the annular 

 prominences of the receptacle and appendage, which are without 

 striations, by its usually more elongate straight receptacle the axis 

 of which coincides with that of the perithecium, not of the appendage 

 as in C. Bruchi, and by its much more highly developed appendage, 

 which may produce more antheridial cells than are known in any other 

 of the Laboulbeniales. In its antheridial characters this species, as 

 well as its ally, depart distinctly from the usual type of Cantharo- 

 myces, which possesses but one antheridium. It should not be sepa- 



